Abstract

We examined the genetic population structure of the endangered freshwater cyprinid Acheilognathus tabira tabira in the Japanese archipelago, which has only been analyzed in limited sampling in previous studies, based on cytochrome b region of the mitochondrial gene. We confirmed the existence of the same three lineages determined in the previous study, the natural distribution area of Lineage I and II+III were considered to be the Seto Inland Sea and Ise Bay regions, respectively. Furthermore, the Seto Inland Sea region population was divided into five groups inhabiting neighboring water systems using the spatial analysis of molecular variance (SAMOVA). We estimated that populations in the Seto Inland Sea region migrated through a single paleowater system during the last glacial period and were then separated and genetically differentiated due to marine transgression. The Yoshino River system population was estimated to be a non-native population because it belonged to the same group as the Lake Biwa-Yodo River system, which is the only separate water system across the Seto Inland Sea. This study provides new evidence of genetic differentiation in A. t. tabira populations within the Seto Inland Sea region, where genetic differentiation has not been detected in previous studies, corresponding to five different groups by significantly increasing the number of individuals and sites compared with previous studies. Therefore, we propose these five groups as conservation units in the Seto Inland Sea region.

Addeddate

2025-04-23 17:06:58

Bhl_virtual_titleid

210922

Bhl_virtual_volume

v.56 (2024)

Call number

10_3897_natureconservation_56_111745

Call-number

10_3897_natureconservation_56_111745

Foldoutcount

0

Genre

article

Identifier

phylogeographyg56itog

Identifier-ark

ark:/13960/s2tb98bwgt7

Identifier-bib

10_3897_natureconservation_56_111745

Identifier-doi

10.3897/natureconservation.56.111745

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

1.0000

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

0

Page_number_module_version

1.0.5

Page_range

19-36

Pages

18

Pdf_degraded

invalid-jp2-headers

Pdf_module_version

0.0.25

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

Nature Conservation 56

Year

2024

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